e485bpos-oficomstratr.htm - Generated by SEC Publisher for SEC Filing

Objective, Primary [Text Block]

rr_RiskReturnAbstract

rr_ObjectivePrimaryTextBlock

Investment Objective. The Fund seeks total return.

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

Fees and Expenses of the Fund. This table describes the fees and expenses that you may pay if you buy and hold or redeem shares of the Fund. You may qualify for sales charge discounts if you (or you and your spouse) invest, or agree to invest in the future, at least $25,000 in certain funds in the Oppenheimer family of funds. More information about these and other discounts is available from your financial professional and in the section "About Your Account" beginning on page 16 of the prospectus and in the sections "How to Buy Shares" beginning on page 67 and "Appendix A" in the Fund's Statement of Additional Information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you (or you and your spouse) invest, or agree to invest in the future, at least $25,000 in certain funds in the Oppenheimer family of funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 25,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[1]

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

Example. The following Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in a class of shares of the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your expenses would be as follows:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If shares are redeemed

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If shares are not redeemed

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

Portfolio Turnover. The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 44% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

44.00%

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Principal Investment Strategies. The Fund mainly invests in a combination of commodity-linked derivatives and corporate and governmental fixed-income securities. Derivatives are investments whose value depends on (or is "derived" from) the value of an underlying security, asset, interest rate, index or currency. A commodity-linked derivative's value is generally linked to the price movement of a particular commodity, commodity index, or commodity option or futures contract. Some commodity-linked derivatives may be based on a multiple of those price movements.

Commodity-linked derivatives provide exposure to the commodities markets without investing directly in physical commodities. They include commodity-linked notes, swaps, futures and options that are linked to the price movements of a physical commodity such as heating oil, livestock, or agricultural products; a commodity index such as the Dow Jones-UBS Commodity Index Total Return ("DJ-UBS Commodity Index"); a commodity option or futures contract; or some other readily measurable variable that reflects changes in the value of particular commodities or commodities markets.

The Fund's commodity-linked investments are generally allocated to five different commodities "sectors" (energy, agriculture, precious metals, industrial metals and livestock) based on those sector weightings in the DJ-UBS Commodity Index. The DJ-UBS Commodity Index represents 22 commodities and five commodity sectors, which are currently weighted annually for diversification purposes so that no related group of commodities constitutes more than 33% of the index and no single commodity constitutes more than 15% or less than 2% of the index. The Fund is not an "index" fund, however, and its investment allocations and performance will usually differ from the weightings and performance of the DJ-UBS Commodity Index. Under normal circumstances, the Fund will invest 25% or more of its total assets in investments linked to these sectors as a group. At times the Fund may emphasize investments in some industries or sectors more than others.

The Fund uses a team approach to construct a portfolio of fixed-income securities for liquidity purposes, for collateral management or to seek income. The Fund's fixed-income securities may be of any maturity and may include, but are not limited to, U.S. Government securities, repurchase agreements, money market securities and shares of affiliated money market funds. The Fund may purchase investment-grade securities and can invest up to 10% of its total assets in below investment-grade securities (also referred to as "junk bonds").

The Fund may invest in other types of derivative instruments to seek to increase its investment returns or hedge against declines in the value of its other investments. Some of the other derivatives the Fund may invest in are forwards, options, futures and swaps relating to debt securities, interest rates or currencies. The Fund may invest in U.S. or foreign instruments.

The portfolio managers use a model-driven approach and their own analysis and judgment to try to identify differences in quality and value between two commodities or contracts with the intent of identifying opportunities. The portfolio managers incorporate both fundamental and technical factors intended to identify mispricings for individual commodities or sectors and catalysts that may potentially eliminate those particular mispricings.

The portfolio managers also consider which instrument or form of investment seems best suited to provide the desired commodities exposure: investing in a commodity-linked note, a commodity futures contract, a swap, or an option on a futures contract. The Fund might enter into an investment directly or it can also invest up to 25% of its total assets indirectly through its wholly-owned and controlled subsidiary, as described below.

The Fund has established a Cayman Islands exempted company that is wholly-owned and controlled by the Fund (the "Subsidiary"). The Fund may invest up to 25% of its total assets in the Subsidiary. The Subsidiary invests primarily in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts) and exchange-traded funds related to gold or other special minerals ("Gold ETFs"). The Subsidiary may also invest in certain fixed-income securities and other investments that may serve as margin or collateral for its derivatives positions. Investments in the Subsidiary are intended to provide the Fund with exposure to commodities market returns within the limitations of the federal tax requirements that apply to the Fund. The Fund applies its investment restrictions and compliance policies and procedures, on a look-through basis, to the Subsidiary. The Fund's investment in the Subsidiary may vary based on the portfolio managers' use of different types of commodity-linked derivatives, fixed-income securities, Gold ETFs, and other investments. Since the Fund may invest a substantial portion of its assets in the Subsidiary, which may hold certain of the investments described in this prospectus, the Fund may be considered to be investing indirectly in those investments through its Subsidiary. Therefore, references in this prospectus to investments by the Fund also may be deemed to include the Fund's indirect investments through the Subsidiary.

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Principal Risks. The price of the Fund's shares can go up and down substantially. The value of the Fund's investments may change because of broad changes in the markets in which the Fund invests or because of poor investment selection, which could cause the Fund to underperform other funds with similar investment objectives. There is no assurance that the Fund will achieve its investment objective. When you redeem your shares, they may be worth more or less than what you paid for them. These risks mean that you can lose money by investing in the Fund.

Main Risks of Derivative Investments. Derivatives may involve significant risks. Derivatives may be more volatile than other types of investments, may require the payment of premiums, can increase portfolio turnover, may be illiquid, and may not perform as expected. Derivatives are subject to counterparty risk and the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. As a result of these risks, the Fund could realize little or no income or lose money from its investment, or a hedge might be unsuccessful.

Main Risks of Commodity-Linked Investments. Commodity-linked investments are considered speculative and have substantial risks, including the risk of loss of a significant portion of their principal value. Prices of commodities and commodity-linked investments may fluctuate significantly over short periods due to a variety of factors, including for example agricultural, economic and regulatory developments. These risks may make commodity-linked investments more volatile than other types of investments.

Main Risks of Leverage. Certain derivatives and other investments of the Fund may involve leverage. Leverage may be created when an investment exposes the Fund to a risk of loss that exceeds the amount invested. Certain derivatives and other investments provide the potential for investment gain or loss that may be several times greater than the change in the value of an underlying security, asset, interest rate, index or currency, resulting in the potential for a loss that may be substantially greater than the amount invested.

Some derivatives and other leveraged investments have the potential for unlimited loss, regardless of the size of the initial investment. Because leverage can magnify the effects of changes in the value of the Fund and make the Fund's share price more volatile, a shareholder's investment in the Fund will tend to be more volatile, resulting in larger gains or losses in response to the fluctuating prices of the Fund's investments.

The Fund has limits on the leverage ratio of each commodity-linked note it buys and on its overall portfolio. The Fund is also subject to legal requirements designed to reduce the effects of any leverage created by the use of certain investments. Under these requirements, the Fund must earmark or segregate liquid assets or engage in other asset coverage measures with regard to the Fund's potential obligations with respect to those investments. The Fund, including the Subsidiary, will comply with these requirements.

Main Risks Of Investments In The Fund's Wholly-Owned Subsidiary. The Subsidiary is not registered under the Investment Company Act of 1940 and is not subject to its investor protections (except as otherwise noted in this prospectus). As an investor in the Subsidiary, the Fund does not have all of the protections offered to investors by the Investment Company Act of 1940. However, the Subsidiary is wholly-owned and controlled by the Fund and managed by the Manager and the Sub-Adviser. Therefore, the Fund's ownership and control of the Subsidiary make it unlikely that the Subsidiary would take actions contrary to the interests of the Fund or its shareholders.

Changes in the laws of the Cayman Islands (where the Subsidiary is organized) could prevent the Subsidiary from operating as described in this prospectus and could negatively affect the Fund and its shareholders. For example, the Cayman Islands currently does not impose certain taxes on exempted companies like the Subsidiary, including income and capital gains tax, among others. If Cayman Islands laws were changed to require such entities to pay Cayman Islands taxes, the investment returns of the Fund would likely decrease.

Main Risks of Debt Securities. Debt securities may be subject to credit risk, interest rate risk, prepayment risk, extension risk and event risk. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Fund's income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer's credit rating, for any reason, can also reduce the market value of the issuer's securities. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and they may be worth less than the amount the Fund paid for them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. When interest rates fall, debt securities may be repaid more quickly than expected and the Fund may be required to reinvest the proceeds at a lower interest rate. This is referred to as "prepayment risk." When interest rates rise, debt securities may be repaid more slowly than expected and the value of the Fund's holdings may fall sharply. This is referred to as "extension risk." Interest rate changes normally have different effects on variable or floating rate securities than they do on securities with fixed interest rates. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Special Risks of Lower-Grade Securities. Lower-grade securities, whether rated or unrated, may be subject to wider market fluctuation, greater credit risk and greater risk of loss of income and principal than investment-grade securities. The market for lower-grade securities may be less liquid and therefore they may be harder to sell at an acceptable price, especially during times of market volatility or decline.

Because the Fund can invest up to 10% of its assets in lower-grade securities, the Fund's credit risks are greater than those of funds that buy only investment-grade securities.

Fixed-Income Market Risks. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns can cause increased volatility in those debt securities or debt securities markets. Under some circumstances, as was the case during the latter half of 2008 and early 2009, those concerns could cause reduced liquidity in certain debt securities markets. A lack of liquidity or other adverse credit market conditions may hamper the Fund's ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Main Risks of Foreign Investing. Foreign securities are subject to special risks. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company's operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those securities. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company's assets, or other political and economic factors. These risks may be greater for investments in developing or emerging market countries.

Special Risks of Developing and Emerging Markets. The economies of developing or emerging market countries may be more dependent on relatively few industries that may be highly vulnerable to local and global changes. The governments of developing and emerging market countries may also be more unstable than the governments of more developed countries. These countries generally have less developed securities markets or exchanges, and less developed legal and accounting systems. Securities may be more difficult to sell at an acceptable price and may be more volatile than securities in countries with more mature markets. The value of developing or emerging market currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or nationalization of a company's assets, restrictions on foreign ownership of local companies and restrictions on withdrawing assets from the country. Investments in securities of issuers in developing or emerging market countries may be considered speculative.

Who Is the Fund Designed For? The Fund is designed for aggressive investors seeking total return over the long term, mainly from commodity-linked derivatives. Those investors should be willing to assume the risks of potentially significant short-term share price fluctuations and losses because of the Fund's investments in commodity-linked instruments. The Fund is not designed for investors seeking current income or preservation of capital. Investors should consider buying shares of the Fund as part of an overall portfolio strategy that includes other asset classes, such as fixed-income and equity investments. The Fund is not a complete investment program and may not be appropriate for all investors. You should carefully consider your own investment goals and risk tolerance before investing in the Fund.

An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Risk Lose Money [Text]

rr_RiskLoseMoney

The price of the Fund's shares can go up and down substantially. The value of the Fund's investments may change because of broad changes in the markets in which the Fund invests or because of poor investment selection, which could cause the Fund to underperform other funds with similar investment objectives. There is no assurance that the Fund will achieve its investment objective. When you redeem your shares, they may be worth more or less than what you paid for them. These risks mean that you can lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The Fund's Past Performance. The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance (for Class A Shares) from year to year and by showing how the Fund's average annual returns for 1, 5 and 10 years compare with those of a broad measure of market performance. The Fund's past investment performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. More recent performance information is available by calling the toll-free number on the back of this prospectus and on the Fund's website: https://www.oppenheimerfunds.com/fund/CommodityStrategyTotalReturnFund

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund's past investment performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

https://www.oppenheimerfunds.com/fund/CommodityStrategyTotalReturnFund

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Sales charges and taxes are not included and the returns would be lower if they were. During the period shown, the highest return for a calendar quarter was 30.80% (2nd Qtr 08) and the lowest return was -52.35% (4th Qtr 08).

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended December 31, 2012

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Your actual after-tax returns, depending on your individual tax situation, may differ from those shown and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state or local taxes.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class and after-tax returns for other classes will vary.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The following table shows the average annual total returns for each class of the Fund's shares. After-tax returns are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state or local taxes. Your actual after-tax returns, depending on your individual tax situation, may differ from those shown and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for only one class and after-tax returns for other classes will vary.

Performance information for Class I shares will be provided after those shares have one full calendar year of performance.

S&P Goldman Sachs Commodity Index (S&P GSCI)

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

0.08%

^[2]

rr_AverageAnnualReturnYear05

(8.12%)

^[2]

rr_AverageAnnualReturnYear10

2.75%

^[2]

Dow Jones-UBS Commodity Index Total Return (DJ-UBS Commodity Index)

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(1.06%)

rr_AverageAnnualReturnYear05

(5.17%)

rr_AverageAnnualReturnYear10

4.09%

Class A

Maximum Sales Charge (Load) imposed on purchases (as % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

1.10%

^[3]

rr_DistributionAndService12b1FeesOverAssets

0.24%

rr_Component1OtherExpensesOverAssets

0.24%

rr_Component2OtherExpensesOverAssets

0.01%

rr_OtherExpensesOverAssets

0.25%

rr_AcquiredFundFeesAndExpensesOverAssets

0.04%

rr_ExpensesOverAssets

1.63%

Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[4]

rr_NetExpensesOverAssets

1.36%

rr_ExpenseExampleYear01

706

rr_ExpenseExampleYear03

1,038

rr_ExpenseExampleYear05

1,393

rr_ExpenseExampleYear10

2,390

rr_ExpenseExampleNoRedemptionYear01

706

rr_ExpenseExampleNoRedemptionYear03

1,038

rr_ExpenseExampleNoRedemptionYear05

1,393

Highest Quarterly Return, Label

rr_ExpenseExampleNoRedemptionYear10

2,390

Annual Return 2003

rr_AnnualReturn2003

22.63%

Annual Return 2004

rr_AnnualReturn2004

19.62%

Annual Return 2005

rr_AnnualReturn2005

26.38%

Annual Return 2006

rr_AnnualReturn2006

(13.08%)

Annual Return 2007

rr_AnnualReturn2007

30.23%

Annual Return 2008

rr_AnnualReturn2008

(54.57%)

Annual Return 2009

rr_AnnualReturn2009

9.97%

Annual Return 2010

rr_AnnualReturn2010

8.61%

Annual Return 2011

rr_AnnualReturn2011

(2.93%)

Annual Return 2012

rr_AnnualReturn2012

(1.80%)

rr_HighestQuarterlyReturnLabel

highest return for a calendar quarter was 30.80% (2nd Qtr 08)

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

30.80%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest return was -52.35% (4th Qtr 08)

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(52.35%)

rr_AverageAnnualReturnInceptionDate

Mar. 31, 1997

rr_AverageAnnualReturnYear01

(7.44%)

rr_AverageAnnualReturnYear05

(13.38%)

rr_AverageAnnualReturnYear10

0.23%

Class A | Return After Taxes on Distributions

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(7.44%)

rr_AverageAnnualReturnYear05

(14.38%)

rr_AverageAnnualReturnYear10

(1.85%)

Class A | Return After Taxes on Distributions and Sale of Fund Shares

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(4.84%)

rr_AverageAnnualReturnYear05

(11.33%)

rr_AverageAnnualReturnYear10

(0.45%)

Class B

Maximum Sales Charge (Load) imposed on purchases (as % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

5.00%

rr_ManagementFeesOverAssets

1.10%

^[3]

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_Component1OtherExpensesOverAssets

0.24%

rr_Component2OtherExpensesOverAssets

0.01%

rr_OtherExpensesOverAssets

0.25%

rr_AcquiredFundFeesAndExpensesOverAssets

0.04%

rr_ExpensesOverAssets

2.39%

Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[4]

rr_NetExpensesOverAssets

2.12%

rr_ExpenseExampleYear01

717

rr_ExpenseExampleYear03

1,028

rr_ExpenseExampleYear05

1,466

rr_ExpenseExampleYear10

2,367

rr_ExpenseExampleNoRedemptionYear01

217

rr_ExpenseExampleNoRedemptionYear03

728

rr_ExpenseExampleNoRedemptionYear05

1,266

rr_ExpenseExampleNoRedemptionYear10

2,367

rr_AverageAnnualReturnInceptionDate

Mar. 31, 1997

rr_AverageAnnualReturnYear01

(7.58%)

rr_AverageAnnualReturnYear05

(13.37%)

rr_AverageAnnualReturnYear10

0.29%

Class C

Maximum Sales Charge (Load) imposed on purchases (as % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

1.10%

^[3]

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_Component1OtherExpensesOverAssets

0.24%

rr_Component2OtherExpensesOverAssets

0.01%

rr_OtherExpensesOverAssets

0.25%

rr_AcquiredFundFeesAndExpensesOverAssets

0.04%

rr_ExpensesOverAssets

2.39%

Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[4]

rr_NetExpensesOverAssets

2.12%

rr_ExpenseExampleYear01

317

rr_ExpenseExampleYear03

728

rr_ExpenseExampleYear05

1,266

rr_ExpenseExampleYear10

2,737

rr_ExpenseExampleNoRedemptionYear01

217

rr_ExpenseExampleNoRedemptionYear03

728

rr_ExpenseExampleNoRedemptionYear05

1,266

rr_ExpenseExampleNoRedemptionYear10

2,737

rr_AverageAnnualReturnInceptionDate

Mar. 31, 1997

rr_AverageAnnualReturnYear01

(3.43%)

rr_AverageAnnualReturnYear05

(13.04%)

rr_AverageAnnualReturnYear10

0.02%

Class I

Maximum Sales Charge (Load) imposed on purchases (as % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

1.10%

^[3]

rr_DistributionAndService12b1FeesOverAssets

none

rr_Component1OtherExpensesOverAssets

0.05%

rr_Component2OtherExpensesOverAssets

0.01%

rr_OtherExpensesOverAssets

0.06%

rr_AcquiredFundFeesAndExpensesOverAssets

0.04%

rr_ExpensesOverAssets

1.20%

Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[4]

rr_NetExpensesOverAssets

0.93%

rr_ExpenseExampleYear01

rr_ExpenseExampleYear03

356

rr_ExpenseExampleYear05

637

rr_ExpenseExampleYear10

1,439

rr_ExpenseExampleNoRedemptionYear01

rr_ExpenseExampleNoRedemptionYear03

356

rr_ExpenseExampleNoRedemptionYear05

637

rr_ExpenseExampleNoRedemptionYear10

1,439

Class N

Maximum Sales Charge (Load) imposed on purchases (as % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

1.00%

rr_ManagementFeesOverAssets

1.10%

^[3]

rr_DistributionAndService12b1FeesOverAssets

0.50%

rr_Component1OtherExpensesOverAssets

0.24%

rr_Component2OtherExpensesOverAssets

0.01%

rr_OtherExpensesOverAssets

0.25%

rr_AcquiredFundFeesAndExpensesOverAssets

0.04%

rr_ExpensesOverAssets

1.89%

Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[4]

rr_NetExpensesOverAssets

1.62%

rr_ExpenseExampleYear01

266

rr_ExpenseExampleYear03

573

rr_ExpenseExampleYear05

1,005

rr_ExpenseExampleYear10

2,210

rr_ExpenseExampleNoRedemptionYear01

166

rr_ExpenseExampleNoRedemptionYear03

573

rr_ExpenseExampleNoRedemptionYear05

1,005

rr_ExpenseExampleNoRedemptionYear10

2,210

rr_AverageAnnualReturnInceptionDate

Mar. 01, 2001

rr_AverageAnnualReturnYear01

(3.11%)

rr_AverageAnnualReturnYear05

(12.61%)

rr_AverageAnnualReturnYear10

0.49%

Class Y

Maximum Sales Charge (Load) imposed on purchases (as % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

1.10%

^[3]

rr_DistributionAndService12b1FeesOverAssets

none

rr_Component1OtherExpensesOverAssets

0.24%

rr_Component2OtherExpensesOverAssets

0.01%

rr_OtherExpensesOverAssets

0.25%

rr_AcquiredFundFeesAndExpensesOverAssets

0.04%

rr_ExpensesOverAssets

1.39%

Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[4]

rr_NetExpensesOverAssets

1.12%

rr_ExpenseExampleYear01

115

rr_ExpenseExampleYear03

416

rr_ExpenseExampleYear05

740

rr_ExpenseExampleYear10

1,656

rr_ExpenseExampleNoRedemptionYear01

115

rr_ExpenseExampleNoRedemptionYear03

416

rr_ExpenseExampleNoRedemptionYear05

740

rr_ExpenseExampleNoRedemptionYear10

$ 1,656

rr_AverageAnnualReturnInceptionDate

Mar. 31, 1997

rr_AverageAnnualReturnYear01

(1.49%)

rr_AverageAnnualReturnYear05

(11.99%)